OPENQASM 2.0;
include "qelib1.inc";
qreg q2[2];
qreg q3[2];
qreg q4[2];
h q2[0];
h q2[1];
h q3[0];
h q3[1];
ccx q3[0],q2[0],q4[0];
ccx q3[1],q2[1],q4[1];
